阅读说明：本技术 一种轨枕位置保护方法 (Sleeper position protection method ) 是由 王建宏 言建文 李华伟 陈荣 郭明丽 于 2019-10-15 设计创作，主要内容包括：本发明公开了一种轨枕位置保护方法,包括以下步骤：S10)在作业前,将包括有轨枕与线路里程对应关系的作业文件输入至捣固车辆；S20)在作业时,首先定位开始同步点,获取线路里程数据,并将作业文件的里程数据与实际线路里程进行对应,使得捣固车辆的实际里程位置与作业文件的里程同步变化；S30)获取轨枕的位置数据,如果检测定位到轨枕,则自动定位和匹配最接近的轨枕所对应的里程位置,进行轨枕保护区域的计算,并输出轨枕保护信号。本发明能够解决现有作业方法存在作业差错,容易发生意外情况,使捣固装置下插至意外位置,从而导致轨枕或捣搞损坏,或者是改变轨枕位置关系并改变轨枕间距的技术问题。(The invention discloses a sleeper position protection method, which comprises the following steps: s10), before operation, inputting an operation file containing the corresponding relation between the sleeper and the route mileage into the tamping vehicle; s20), during operation, firstly, positioning a starting synchronization point, acquiring line mileage data, and corresponding the mileage data of an operation file with an actual line mileage so that the actual mileage position of the tamping vehicle and the mileage of the operation file synchronously change; s30), acquiring the position data of the sleeper, automatically positioning and matching the mileage position corresponding to the closest sleeper if the sleeper is detected and positioned, calculating the sleeper protection area, and outputting a sleeper protection signal. The invention can solve the technical problems that the operation error exists in the existing operation method, the accident situation is easy to happen, the tamping device is downwards inserted to the accident position, the sleeper or the tamping device is damaged, or the position relation of the sleeper is changed and the distance between the sleepers is changed.)

1. A sleeper position protection method is characterized by comprising the following steps:

s10), before operation, inputting an operation file containing the corresponding relation between the sleeper (10) and the route mileage into the tamping vehicle;

s20), during operation, firstly, positioning a starting synchronization point, acquiring line mileage data, and corresponding the mileage data of an operation file with an actual line mileage so that the actual mileage position of the tamping vehicle and the mileage of the operation file synchronously change;

s30), acquiring position data of the sleeper (10), if the sleeper (10) is detected and positioned, automatically positioning and matching the mileage position corresponding to the nearest sleeper (10), calculating a sleeper protection area, and outputting a sleeper protection signal.

2. Tie position protection method according to claim 1, characterized in that the process of determining the position of the tie (10) in step S30) further comprises:

the spike (11) is detected through the magnet induction switch (3) and the first distance proximity switch (4), and the sleeper (10) is detected through the second distance proximity switch (5); and judging that the sleeper (10) is detected when a spike (11) detection signal output by the magnet induction switch (3) and the first distance proximity switch (4) and a sleeper (10) detection signal output by the second distance proximity switch (5) are received.

3. Method for the protection of the position of sleepers according to claim 1 or 2, characterized in that it further comprises the following steps:

when the line is measured, a synchronous and virtualized relation graph of an actual line sleeper (10) and the line mileage is displayed; when the sleeper (10) is detected and positioned, the protection of the sleeper position is realized by calculation according to preset parameters.

4. A tie position protection method as claimed in claim 3, wherein: in the step S30), when the sleeper (10) is not detected and positioned, calling an operation file, and extending 1-m sleepers from the current measuring point to the operation direction; if the sleeper (10) is detected and positioned again, the operation file is called again, and 1-m sleepers extend to the operation direction from the current detection positioning point until the sleeper (10) is detected and positioned again.

5. A tie position protection method as claimed in claim 1, 2 or 4, wherein: and calculating a sleeper protection area according to the set sleeper width, the sleeper boundary protection range and the collected tamping vehicle running speed, and simultaneously displaying the position conditions of the m sleepers (10) from the current measuring point by searching an operation file.

6. Sleeper position protection method according to claim 5, characterized in that the sleeper protection area is calculated according to the following formula:

protection region Q ═ W +2 × d formed from job file

Protective area P ═ s a obtained by calculation according to running speed of tamping vehicle

The protection area Q comprises a set sleeper width W and a rail edge protection distance d, wherein the two side edges of the sleeper (10) extend along the running direction of the tamping vehicle respectively; the protection area P comprises a distance which is s a from one side edge of the protection area Q along the running reverse direction of the tamping vehicle to the running reverse direction of the tamping vehicle, s is the running speed of the tamping vehicle, and a is an adjusting coefficient.

7. A tie position protection method as claimed in claim 6, wherein: when part of lines cannot detect and position the sleeper (10), for the lines which cannot continuously detect and position the sleeper (10) position information, the operation protection area of the subsequent line is obtained by using the operation file input in advance and the calculated sleeper protection area until the position of the sleeper (10) is detected and positioned again.

8. Sleeper position protection method according to claim 7, characterized in that for a line continuously not able to detect the information of the position of the localized sleeper (10), the protection area C of the nth sleeper (10) is calculated according to the following formula:

Xn-Q/2-P＜C＜Xn+Q/2

wherein n is the number of sleepers that are not detected to be located, and Xn is the spacing between the nth consecutive non-located sleeper (10) and the first non-located sleeper (10).

9. A tie position protection method as claimed in claim 1, 2, 4, 6, 7 or 8, wherein: when an obstacle (16) is marked between two sleepers (10) in an operating document, the protective regions of the two sleepers (10) and the region between the two protective regions are protected during operation of the tamping vehicle.

10. A tie position protection method as claimed in claim 9, wherein: in the step S30), if the sleeper protection signal is output, the tamping downward-inserting signal is cut off, the tamping downward valve (9) cannot be electrified, the tamping head cannot be inserted downward, and the sleeper protection signal can be cut off in a manual cutting mode; when the position of the sleeper (10) is not detected and positioned in the operation file, the sleeper protection signal is output, the tamping plug-in signal is cut off, and the sleeper protection signal can be cut off in a manual cutting mode and manual tamping operation can be carried out.

Technical Field

The invention relates to the technical field of railway engineering machinery, in particular to a sleeper position protection method applied to tamping operation of large-scale road maintenance machinery.

Background

At present, maintenance operation of a railway line is changed from a manual mode to a large-scale engineering machinery mode, a pickaxe needs to be stepped manually in large-scale mechanical tamping operation, a tamping descending pedal needs to be stepped down at a certain distance before a tamping point is reached, a tamping head descends, and accordingly one tamping operation is completed. In the automatic tamping operation process of the large-scale road maintenance machine, the measurement needs to be carried out on the operated railway line, the tamping-up inserting position needs to be calculated, and the moving distance from the current position to the next tamping inserting position needs to be calculated. However, when the system fails, or an accident occurs, the tamping unit may be inserted down to the place of the accident, such as: if inserted above the sleepers, the sleepers may be damaged or the sleepers may be tamped; if inserted to the edge of the tie, the positional relationship of the tie and the spacing between the ties may change.

In the prior art, a common tamping operation method adopts an equidistant operation method, and the operation method is suitable for occasions with unchanged or slightly changed moving distance of each operation. In fact, the distance moved by each operation and the expected distance moved by the operation often have errors, and the errors are gradually accumulated to form a large operation error, so that the operator is required to continuously correct the moving distance in a manual mode. Obviously, the automatic tamping operation method cannot operate under certain conditions, and the technical stuffing shortage that the operator needs to intervene at any time and cannot leave a working post exists.

In addition, the applicant filed a request from shorea era electronics technology limited company on the year of 2018, month 01, and published a request on the year of 2018, month 05, month 29, and the chinese invention application with publication number CN108086071A also discloses a railroad track sleeper position positioning method. When the railway track sleeper position measuring device is positioned at the starting point of the railway track, the kilometer post is positioned to the starting point; the railway line sleeper position measuring device starts to measure along a railway line, the kilometer post moves forwards, and when the sleeper is detected, the central position of the sleeper is marked, and the corresponding kilometer post is marked; when an obstacle is detected to exist between the sleepers, an obstacle mark is marked between the two sleepers, and corresponding kilometer marks are marked; when a joint exists between two steel rails, marking a steel rail joint mark between two corresponding sleepers, and marking a corresponding kilometer post; and when the railway line sleeper position measuring device continuously detects the railway line sleeper position until the railway line measurement is finished, forming a data file of the corresponding relation between the sleeper and the kilometer post. The invention can solve the technical problems of large operation error, low automation degree, unstable operation state and manual intervention requirement of the existing measurement mode. However, the technical scheme of the invention mainly relates to the measurement positioning of the line sleepers and the formation of operation files before vehicle tamping operation, and does not relate to the sleeper position protection of vehicles during tamping operation.

Disclosure of Invention

In view of the above, the present invention provides a method for protecting a sleeper position, so as to solve the technical problems that an operation error exists in the conventional tamping operation method, an accident easily occurs, and a tamping device is inserted down to an unexpected position, so that the sleeper or the tamping device is damaged, or the position relationship of the sleepers is changed and the distance between the sleepers is changed.

In order to achieve the above object, the present invention specifically provides a technical implementation scheme of a sleeper position protection method, which includes the following steps:

s10), before operation, inputting an operation file containing the corresponding relation between the sleeper and the route mileage into the tamping vehicle;

s20), during operation, firstly, positioning a starting synchronization point, acquiring line mileage data, and corresponding the mileage data of an operation file with an actual line mileage so that the actual mileage position of the tamping vehicle and the mileage of the operation file synchronously change;

s30), acquiring the position data of the sleeper, automatically positioning and matching the mileage position corresponding to the closest sleeper if the sleeper is detected and positioned, calculating the sleeper protection area, and outputting a sleeper protection signal.

Further, the process of determining the tie positioning in step S30) includes:

the spike detection is performed through the magnet induction switch and the first distance proximity switch, and the sleeper detection is performed through the second distance proximity switch. And judging that the sleeper is detected when the spike detection signal output by the magnet induction switch and the first distance proximity switch and the sleeper detection signal output by the second distance proximity switch are received.

Further, the method comprises the following steps:

the method comprises the steps that when a line is measured, a synchronous and virtualized relation graph of an actual line sleeper and line mileage is displayed; when the sleeper is detected and positioned, the protection of the sleeper position is realized by calculating according to preset parameters.

Further, in step S30), when the tie is not detected and located, the operation file is called, and 1 to m ties are extended from the current measurement point in the operation direction. And if the sleeper is re-detected and positioned, the operation file is re-called, and 1-m sleepers are extended from the current detection positioning point to the operation direction until the sleeper is re-detected and positioned.

And further, calculating a sleeper protection area according to the set sleeper width, the sleeper boundary protection range and the collected running speed of the tamping vehicle, and simultaneously displaying the position conditions of the m sleepers from the current measuring point by searching an operation file.

Further, the sleeper protection area is calculated according to the following formula:

protection region Q ═ W +2 × d formed from job file

Protective area P ═ s a obtained by calculation according to running speed of tamping vehicle

The protection area Q comprises a set sleeper width W and two rail edge protection distances d respectively extending from the sleepers along two side edges of the running direction of the tamping vehicle. The protection area P comprises a distance which is s a from one side edge of the protection area Q along the running reverse direction of the tamping vehicle to the running reverse direction of the tamping vehicle, s is the running speed of the tamping vehicle, and a is an adjusting coefficient.

Further, when a part of lines cannot detect and position the sleeper, for the lines which cannot continuously detect and position the sleeper position information, the operation protection area of the subsequent section of line is obtained by using the operation file which is input in advance and the calculated sleeper protection area until the position of the sleeper is detected and positioned again.

Further, for a line which can not continuously detect and locate the position information of the sleeper, the protection area C of the nth sleeper is calculated according to the following formula:

Xn-Q/2-P＜C＜Xn+Q/2

where n is the number of sleepers that are not detected as being located, and Xn is the spacing between the nth consecutive non-located sleeper and the first non-located sleeper.

Furthermore, when there is a marking of an obstacle between two sleepers in the work document, the protection areas of the two sleepers and the area between the two protection areas are protected during the operation of the tamping vehicle.

Further, in the step S30), if the tie protection signal is outputted, the tamping downward-inserting signal is cut off, the tamping downward valve cannot be energized, the tamping head cannot be inserted downward, and the tie protection signal can be cut off by manual cutting. When the position of the sleeper is not detected and positioned in the operation file, the sleeper protection signal is output, the tamping plug-in signal is cut off, and the sleeper protection signal can be cut off in a manual cutting mode and manual tamping operation can be carried out.

By implementing the technical scheme of the sleeper position protection method provided by the invention, the sleeper position protection method has the following beneficial effects:

(1) according to the sleeper position protection method, the unknown line is accurately measured, the sleeper position data file of the operation line obtained after the measurement is finished is sent to the tamping vehicle for operation, the sleeper position can be accurately positioned, and the fact that the sleeper position is not capable of being tamped and inserted down nearby is achieved, so that the sleeper is effectively protected, accidents are prevented, automatic tamping operation protection can be achieved, operation protection in a manual tamping mode can be achieved, and the safety and the automation degree of tamping operation can be greatly improved;

(2) according to the sleeper position protection method, sleeper position information is deduced through measurement and calculation, operation protection can be realized by combining an operation line sleeper position data file and an operation algorithm, the descending action of a tamping head can be blocked in a protection area, a sleeper is prevented from being damaged or disturbed, and the safety of tamping operation of large engineering machinery is further guaranteed;

(3) the sleeper position protection method can synchronously virtualize a relationship diagram between the sleeper and a kilometer post (or mileage) of an actual line when the measuring device measures the railway line, and a complete database operation file is formed after the measurement is finished and can be used for an operator to look up and recheck data in time, so that the operation error can be automatically corrected, the realization process is simple, and the additional hardware cost is not required to be increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive effort.

FIG. 1 is a block diagram of the system architecture of one embodiment of a tie position protection device upon which the method of the present invention is based;

FIG. 2 is a block diagram of a partial system architecture of one embodiment of a tie position protection device upon which the method of the present invention is based;

FIG. 3 is a schematic illustration of the mounting structure of one embodiment of a tie position protection device upon which the method of the present invention is based;

FIG. 4 is a schematic illustration of the sleeper location principle of one embodiment of the method of sleeper location protection of the present invention;

FIG. 5 is a schematic diagram illustrating the relationship between the sleeper location information and the railroad kilometer posts according to the method for protecting the position of the sleeper of the present invention;

FIG. 6 is a schematic illustration of the sleeper protection principle of one embodiment of the sleeper position protection method of the present invention;

FIG. 7 is a schematic view of a parameter display and setup interface of one embodiment of a tie position protection method of the present invention;

FIG. 8 is a schematic illustration of the principle of positioning obstacles in accordance with one embodiment of the method of protecting the position of a tie of the present invention;

FIG. 9 is a schematic view of the barrier protection principle of one embodiment of the sleeper position protection method of the present invention;

FIG. 10 is a schematic diagram illustrating a sleeper protection calculation according to an embodiment of the method for protecting a position of a sleeper of the present invention;

FIG. 11 is a schematic diagram of a sleeper protection signal waveform of one embodiment of the method for protecting a position of a sleeper of the present invention;

FIG. 12 is a process flow diagram of one embodiment of a tie position protection method of the present invention;

in the figure: the method comprises the following steps of 1-processing unit, 2-distance measuring unit, 3-magnet inductive switch, 4-first distance proximity switch, 5-second distance proximity switch, 6-display unit, 7-interface unit, 8-manual cutting switch, 9-tamping descending valve, 10-sleeper, 11-spike, 12-ballast, 13-steel rail, 14-wheel pair, 15-marking point, 16-obstacle, 20-sleeper protection execution unit, 21-control coil, 22-operation switch and 100-sleeper position protection device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 12, a concrete embodiment of the sleeper position protection method according to the present invention is shown, and the present invention will be further explained with reference to the drawings and the concrete embodiment.